Sahih Bukhari Volume 008, Book 074, Hadith Number 295.

Narated By Ibrahim : 'Alaqama went to Sham and came to the mosque and offered a two-Rak'at prayer, and invoked Allah: "O Allah! Bless me with a (pious) good companion." So he sat beside Abu Ad-Darda' who asked, "From where are you?" He said, "From the people of Kufa." Abu Darda' said, "Wasn't there among you the person who keeps the secrets (of the Prophet) which nobody knew except him (i.e., Hudhaifa (bin Al-Yaman)). And isn't there among you the person whom Allah gave refuge from Satan through the request (tongue) of Allah's Apostle? (i.e., 'Ammar). Isn't there among you the one who used to carry the Siwak and the cushion (or pillows (of the Prophets)? (i.e., Ibn Mas'ud). How did Ibn Mas'ud use to recite 'By the night as it conceals (the light)?" (Sura 92). 'Alqama said, "Wadhdhakari Wal Untha' (And by male and female.") Abu Ad-Darda added. 'These people continued to argue with me regarding it till they were about to cause me to have doubts although I heard it from Allah's Apostle."